A note on the falling leaf drill ... In my neck of the woods, it's done this way:
stand with skis across the hill
flatten them both and sideslip straight down the hill
keep sliding, but bend the ankles forward to press shins into the fronts of the boot cuffs
....the skis should keep sideslipping, but go diagonally forward not straight down the hill.
then open the ankles to press the calves against the backs of the cuffs
...the skis should keep sideslipping but go diagonally backwards down the hill.
Alternate opening and closing the ankles while sideslipping to see how this affects the sideslipping.
While doing this the skier can twist the skis to point the tips uphill while sideslipping forward,
...and twist them to turn the tails uphill while sideslipping backwards.
This should create a falling-leaf-like line down the hill.
Or you can twist the tips to point downhill to start a turn when you are diagonally sideslipping downhill.
In this way a falling leaf can be turned from a drill focusing on finishing a turn to a turn focusing on starting a turn with manual turning of the skis.
(There are other ways to start a turn from this point as well, maybe even better than twisting the skis. Try not twisting, but just sliding the downhill ski back about 3".)
Increase and decrease edging too; it's fun.
Monique and Marker, your falling leaf drill must be very different from the one I just described if picking up a leg to do it helps. I've heard that there are alternate versions of falling leaf from the one I just described. Can you describe how yours is different?
Hmm. I may have been thinking of pivot slips. But it's that transition from across the fall line to down the fall line at low speed that is difficult.